Internally-heated throttle-valve for hydrocarbon-engines



` LE HOY W. HOYT. ESNALLY HEATED THROTTLE VALVE FOR HYDHOCARBON ENGiNES.

fric? APPLICATIN FLED OCT= 27 19151.

Y l5 an exhaust conuci-tion` .lo the 'i UNITED STATf5;S

INTERNALLY-l-IEATED THBGTTLE--VAFJE EGE, E3

interet.

A lisation le. October 22', 1919. Serial Not 33E Mil T 0 all whom t may cof/teem.:

Be it known that l, Ln ROY lV. Herr, a

citizen ot the United States, residing lat Stamford, county of Fairfield, State of @on nectic-ut, have invented an improvement in Internally-Heated T liiottle.-Valves for Hydrocarbon-Engines, of which the tollowing is a specification. This invention relates to hydrocarbon engines and has for ite general objects to provide a structure which will greatly reduce fuel consumption, will insure vaporization ot the lower grades ot' gasolene, will dis,- tribute the explosive mixture more uniformly and thoroughly and dry it out before it enter thiig'ine cylinders, will permit quick etaKA tin@ and give greater flexibility to the engine, will practically eliminate oarboniza'tion and loading of the intake pipes, and will prevent the accumulation of moisture on the cylinder walls.

V'.Fhese results I accomplish by means of a novel throttle valve and a novel construetion and combination of parts Cooperating therewith. In brietl provide a novel structure which may be used in connection with any ordinary carburetor or with carburatore ol" special construction, important. laturee' of the present invention being that the ordinary butterfly throttle valve at the caroureter is eliminated, and that iii lien thereot' Ti provide a sliding tubular throttle valve which is internally heated by utilization ot part ot the exhaust and which. pas is through the intake manifold and reciprooa-tes iii a Venturi chamber'wl ich is externally heated by a portion oi the exhaust.

ln the aeoompanying drawing' forming; part oic this specification, y

Figure l is :i fragmentary elevation ol so much of a 'hydrocarbon engine as is necessary to illustrate the application thereto ot the present in vention;

Fig. 2 a section on the hooi/1 2 in Figi. l,

looking in the direction of thix arrows; and

Fig. 'l is an. enlarged detail sectional i'icw at right angles to the section iiuc in Fig'. and also showing a sligilii inofiicution in details otl coiislria-tion.

10 denotes the engine cilinders, il the intake inanilioldi-.lf the erin-tufo'. manifold. 'l the Venturi chamber, l tinI liral'ii pichet,

Specification of Letters Patent.

pase through the lieatiiigestq portion or neel: therelitf compri' valve Seat7 as at .lelow this. e the Venturi. chamber oper t into thc carbu ieter coimeotion. l?? dcnotcfy the tubular throttle valve which is formed intermediate the onde ot a throttl to correspond with tl Seat. The throttle ir.

intake. manifold and th .1

coiiiioc. 'ne aud has slidingA bearii rs, in i long straight tapers. while in Figi'. Phare Shown a slightly modified loi'in vin n iich a circuiiifei'ential rib 2., on the valrr, with a falve scat consisting' ot ay co iner rib at the lower ond olE the vg. Venturi chamber. i

s aineaiis ot inreratiiig;` the throt! I have shown a` bell craiilt lever 25%. o of which 'is provided with a. yoho l i' engages lugs 26 at the lower end throttle stem. the other arm ot l lol havingY att-ached thereto a connecting' rod which extends to a suitable operating' ,oi-em bei', not shown7 as a pedal or a lianfl'lcvci on the dash board or .steering column oi an automobile. The exhaust connection l5 leads from the exhaust inaiii'lold to a' T-liuh 28 trom which pipes 2S? and 3U extend. i portion ot the exhaust i'roni the manifold passes to the ni'flmh and there ili,'iilc`s, a portion pausing liin'nigfh pipo 2i-t, hub 21, and throttle sten. 2t?, and ont ai' t lower und tlicrcoivthe other portion passing` through pipo Il() to heating" jai-,liet ll and out through exhaust connection lf3. lt is immaicrial so far as the present invention concerned what dispoeition is iliade olf the exhaust from the valve tubo and 'im connection i6, lt may pass directly 'to the open air or throconncctio'iis loading the main exhai l au l: lu startiii;r the engine in cold wentheV the throttle stein is primarily heated, bij pom-inrar hot water tl rough it` a funnel \K Y .fr, throttle .stein and vaive i ni a part ot u; will i l 5 f'i and the intake manifold is heated both by the internally heated throttle valve and by the externally heated walls of the Venturi chamber. rlhe manner of controlling the passage of explosive mixture from the carbureter to the Venturi chamber is practically the same' as where an ordinary butterfly throttle valve is used. The present invention, however, provides an internally. vheated sliding throttle valve and in coperation therewith a valve seat and Venturi chamber externally heated by the utilization,

of a portion of the exhaust. I am thus enabled toheat and dry the explosive mixture in the Venturi chamber just before it enters the intake manifold and thereby grea'tly improve the operation of theengine by giving it greater flexibility and with a reduced consumption of gasolene, owing to the more perfect.k vaporization of the gasolene, the heating, drying and uniform distribution of the mixture, and the practical elimination of carbonization. o

Having thus described my invention, I claim:

1. In a hydrocarbon engine, a reciprocatingthrottlevalve in combination with means for internally heating the same.

2. In a hydrocarbon engine, a reciprocating, tubular throttle valve in combination with means for internally heating the same.

3. The combination with a valve seat and a sliding throttle valve, of means for heating said valve seat and for internally heating said throttle valve.

4f. The combination with a tapering valve seat, and a jacket and exhaust connections for heating the same, of a sliding tubular throttle valve and exhaust connections for internally heating said valve.

5. The combination with a tapering valve seat, and a jacket and exhaust connections .for heating the same, of a correspondingly tapered throttle valve, a reciprocating tubular throttle stem by which said valve is carried, and exhaust connections for said throttle stem. o Y.

G. In combination an intake manifold, a tapering Venturi chamber opening into the manifold, a carbureter connection opening into the chamber, a valve seat at the neck of the chamber, a vcoperating throttle valve, and a sliding throttle stem by which the valve is carried and which passes thiough the manifold, chamber'and carbureter connection.

7. In combination an intake manifold, a tapering Venturi chamber openinginto the manifold, a carbureter connectionopening into the chamber, a valve seat atithe neck of the chamber, a heating jacket surrounding the Venturichamber, a coperating throttle valve, a sliding throttle stemby which the valve is carried, and exhaust connections to the heating jacket and to the throttle stem.

8. In a hydrocarbon engine the lcombination with an externally heated .Venturi chamber having a valve seat,'of an inter,- nally heated sliding throttle valve.

9. In a h drocarbon`engine the combination with a 7enturi chamber having a Valve seat and a heating jacket surrounding said chamber, of a sliding' tubular throttle valve LE ROY W. HoYT. 

